Before starting the copyright procedure, PLEASE be sure to which of the three conference you intend to submit your work,  and fill the copyright form with the correct paper number [3 digits] assigned in the preliminary registration

THIS FORM IS FOR 

2021 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)

IEEE Electronic Copyright Form Submission

Full title of your paper
Names of all authors (separated by commas/and) (e.g., Adam Smith and Bob Miller)
Conference paper no.(3 digits), (if the copyright app reports already used/error, add a postifix as a letter to the 3 digits) 
Corresponding Author email